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Submerged sandbanks shine like underwater auroras in astronaut's view of the Bahamas — Earth from space

A 2016 astronaut photo of the Bahamas shows a series of luminous, rippling sandbanks partly carved out by a coral reef. The ...
The Daily Gazette

Earth Talk: Sand mining

Dear EarthTalk: What is “sand mining” and why is it bad for the environment? – O.H., via email Answer: Sand mining, extracting sand from the earth, is the second most widespread human activity in ...